Scoring machine



Oct. 31, 1944. J HOTHERSALL 2,361,401

SCORING MACHINE Filed June 11, 1941 6 Sheets-Sheet J.

I I INVENTOR ATTORNEYS 1944- J. M. HOTHERSALL 01 SCORING MACHINE FiledJune 11, 1941 6 Sheets-Sheet 4 II I nu; T lllli'iillllllllllllllhlll'llllfllulllllllllllllllll n mum &&

- ATTORNEYS Oct; 33, 1944. M HQTHERSALL 2,361,401

SCORING MACHINE Filed June 11, 1941 6 Sheets-Sheet 6 ATTORNEY-5 PatentedOct. 31, 1944 UNITED STATES. PATENT aO-FFI'CE SCORJI Z hZZLHINE IAmerican Can Compan poration of New "Jersey y, New York, N .'Y., a cor-Application June 11, 1941,.-Serial:No. 397.626

8 Claims. (Cl. 113-15) The present invention relates to scoringmachinesfor impressing weakening lines in metallic surfaces and has particularreference to'such a -machine which terminates the score lines byioiningthe ends within the'boundaries of 'th sur-'"' face.

In the manufacture of the well known tearing I strip container or canwhich is adaptedto be .opened by the removal of aportion of thebodywall'bounded'by weakened'or-score'lines,'it is--= sometimes desirable toleave thecan cover; which results from the removal :of the tearingstrip, attached to the can 'bodyby'a hinge portion of the body wall.This isefiected sometimes by forming in the "body wall'a tearing stripthat extends only partially around the can body, the

.score lines terminating and joining-each other "within the confines ofthe body and-adjacent -"the 'side seamthereof so that-a portion ofthe.body wall adjacent the .end of the tearingstrip "remains intact andservesas aahinge .when'the tearing. stripis removed.

The present=invention: contemplates the'provision of a scoring machinefor scoring-canbody blanks from which such hinge cover :cans:'are

--made. 7

:An :object thereforeof the invention is'athe provision of a machine for*scoringon impressing weakening .:-lines in' metallic.surfaceswhereinfthe weakening lines donot extend-through theedge butare confined within the surface beingscored.

:Another objectis the-provision of. such ascoringvmachine wherein theimpressing of the:score lines is effected by rotating rollers whichoperate 'to set off a tearing strip in a can zbodyblank :ing'machinewherein the blanks to be scoredzmay be'fed rapidly-into scoringassociation with the scoring rollers and insynchronism with the rota-.tion of the scoring rollers so that the tearing strip :will be setofirin a predetermined; position inLthebIank. i I

:Numerous other objects and advantages 'ofzthe i invention'willibeapparent as itis better understood from the following description,which,

staken :in connection :with the accompanying :Fig. 8 is an edge view of"one "rollers;

drawings, discloses a preiferred embodiment thereof.

i-Referring to the drawings: :Figures 1 and 2when-takentogetherillustrate zatopxplanview of a scoring machineembo'dying theinstant invention;

Fig. 3 is 1 a .longitudinal :part section and :part elevationtaken-substantially along the broken line 3-..3 in Fig. 1;

Fig. .4. iS'-a rear view of the machine shown; in

Fig. -l,:with-tpartsbrokenaway and shownin section;

.Fig. '5 is a transverse part :section -.an'd:p'art elevation takensubstantiallylalongthe line 5-v5 inzFigsq-l and'2;

Fig. .6' is ancen'larged' sectional view..taken': substantially alongthe'line 6;6. in Fig. 1, with parts broken away; v

Fig. '7 'is .a horizontal section taken:substantiallyalong the line rl7in Fig. '6;

..of the ":scoring Fig. 9 is aiside view. of ithearollershownfin-Fig.z8,-with:parts'broken away and partsshown in section;

' iFig. 11.0 is a. fragmentary :side-view of 1 another,

scoring .rol1er,'-'with a-portion broken :away and shown in section;

Fig. 11 is a part elevation and part sectional view of one of theanvil:rollers. and its-mounting shown in the lower right of Fig-:6; and

51%. -12 is a .plan view of ':a .can 'bodyLblank havinga-tearing-stripset .offaby score: linesiimpressed in the surface of;the. blankibythe' present machine.

.As a preferred embodiment of the instantiin- .ventionthe drawingsillustrate asscoring machine in which a sheet metal rectangular:canrbody blank A (Fig. '12) is.;impressed 'withagzpair of spaced andparallel score lines 3' located in'a ,predetermined portion in. theblank. rSuchaa .rcan

body-blank preferabl-yis for usein forming round or other shapedncan:bodies .used in 'cans'xof the character disclosed in United StatesPatent -1,"737,020,-issued November 26, -1929, [to-J; F.

Peters, ,on Tear open tobacco can.

Thescore linesBextendfrom one s-ideasea-m edge oftheblank toward: theother .andterminate short ofthisiatter edge, .-Th scorelinesadjacentrone' end of the blankarejoinedby way of short angularly:disposed :connecting'ascore :lines C which together with the scorelines -B-set oif :arremovable tearing. strip D- which--is.;adapted-toand. rear retaining bars; l2,

-be'torn away toopen a cana-having a body :made

.from such ablank. v

The plain blanks A to be scored-aret'fedfirom a-stack of such blanksretained in a magaizine .ll .(Figs. 2;ancl. 5) which includes :verticalfront 4:3 {which-hold --the stack of blanks in ;place. Thefront-retaining frame of the machine.

machine frame I l.

bars l2 are Secured to the outer ends of a pair of horizontal spaced andparallel guide rails I5 which are attached to the top of a bed plate [6.Supportrails IS. The vacuum cup'is fixed to the upper end of a stem 23which slides up and down in the slideway of .a'bracket 24 secured to theThe lower end of the stem is connected to a flexible hose 25 which leadsfrom any suitable source of vacuum and this hose communicates with apassageway in the stem which leads to the vacuum cup.

The vacuum cup 22 is shifted vertically by a segment gear 28 whichmeshes with a rack 23 formed in the cup stem 23. The gear is mounted ona rocker shaft 32 which is carried in bearings 33 formed'in the mainframe H. The rocker shaft is actuated by an arm 34 which is carried onthe shaft. The outer end of the arm carries a cam roller 35 whichoperates in a cam groove 33 of a cam 31 formed on alever 38.

The lever 38 is mounted on a pivot pin 39 carried in a boss formed onthe cup stem slideway bracket 24. Thelever'is connected by a link 4| -toan arm 42 mounted on a cross shaft 43 carried in suitable bearings inthe main frame H. The shafticarries a rocker lever 44 which is connected.to a crank rod 45. The crank rod surrounds acrank pin 46 secured in aneccentric position in a'paircf spaced crank discs 41 of a crank shaftThe crank shaft is jour-' 48 (see also Fig. 3). naled in a plurality ofbearings 49 in the main frame I1. I The crankshaft 48 is continuouslyrotated by' an endless chain 52 which operates over a sprocket 53mounted on the crank shaft and over a'sprocket 54 which isc'arried on anauxiliary 'drive'shaft 55 journaled in bearings 56 in the main frame IT.The auxiliary drive shaft carries V v a' bevel gear 58 which meshes witha bevel pinion 59 mounted on a shaftfil (Fig. 5) journaled in bearings62 in the main frame.

' 1 This shaft is rotated by anendless chain 63 which operates overa'driven sprocket 64 mounted on the shaft and over a driving sprocket 65which is mounted on a rotor shaft 66 of an-elec- "trie'motor 61. Thiselectric motor is the main source of power for operating the entiremachine.

When a blank A is pulled down by thevacuum cup 22 from the magazine H itis immediately engaged along its rear edge by feed dogs H (Figs. 1 andwhich are carried in a pair of spaced below the magazine. these'feeddogs equally spaced along the length of the feed bars." These feed barsslide in suitable grooves formed in the machine bed plate IS. Thefeed.bars are'secured to a tie-bracket 13 which is connected by a link14 to the upper end of the rocker lever 44.

Hence as the rocker lever 44 operates to actuate the vacuum cup 22, italso reciprocates the feed bars 12 through a forward or feeding strokeand thence through a backward or return stroke.

The entire stack of blanks rests on a pair' for the scoring operations.

and parallel reciprocating feed bars 12 located,

There are a plurality of upright feed dog I02 secured thereto.

This reciprocation of the feed bars first removes thepulled down blank Afrom the magazine and then advances it along a straight line path oftravel through several idle stations in the machine, in an intermittentor step-by-step movement. The guide rails 15 hereinbefore mentioned,guide the blanks through the idle stations While a pair of hold-downbars 15 frictionally engage against the top surfaces of the blanks andprevent them from being shifted back with the feed dogs on the returnstroke of the feed bars.

At the inner end of the path of travel of the advancing blanks A, theinnermost blank in the procession is pushed forward by a long finger 18on the feed bars 12 and is received against a stationary gauge block-l9(Fig. 5) which is mounted on the bed plate Hi. In this position, theblank is disposed directly above a substantially horizontal lifter arm8| which immediately operates to lift the gauged blank above the path oftravel of the succeeding blanks in the procession.

The lifter arm 8| constitutes one leg of a bell crank 82 mounted on apivot shaft 83 carried in suitable bearings formed in a housing bracket84 secured to an adjacent part of the machine frame. The vertical leg ofthe bell crank carries a cam roller 86 which operates in a cam groove 81of a barrel'cam 88 mounted on a shaft 89 journaled in bearings 91 in thehousing bracket 84. This cam shaft is rotated in time with thereciprocation of the feed bars 12, by an endless chain 93 which operatesover a driven sprocket 94 on the cam shaft and over a driving sprocket95 on the shaft Bl which is driven by the electric motor 61.

The lifter arm 8| lifts a blank A into engagement with a row ofpermanent magnets 98 which are secured in an overhanging shelf 93 of thegauge block 19. The raised blank clings to the magnets at this higherlevel where it is in endwise alignment with a cross feeding devicedisposed at right angles to the entrance feeding device just explained;

The cross feeding device advances the blanks lengthwise along a straightline path of travel Because of the greater length of some can bodyblanks as compared with their width, the lift transfer of the blanksfrom one level to another results in a more rapid and more efficientpassage of the blanks through the machine. I

The cross feeding device includes a reciprocatingfeed bar [0| (Figs. 3and 5) having a single The feed bar slides in a slideway )3 formed in ablock I04 bolted to the'bed plate l6. A flat plate I05 secured to thetop of the block confines the feed bar in its slideway.

' The feed bar If is reciprocated through a shortforward feeding strokeand thence through a return stroke by a segment gear I08 which mesheswith a rack H19 formed in the bottom of the feed bar. The segment gearis part'of' a rocker'arm HI formed on a lever H2 mounted on a pivotshaft I I3 carried in a boss H4 on the bed plate Hi. The lever carries acam roller which operates in'a-cam groove l I! of a barrel cam I 19mounted on and rotated by the shaft.

Hence as the shaft 48 rotates, it revolves the cam H9 and this rocks thelever H2 and arm IN to reciprocate the feed bar l0l.

ward stroke of the feed bar the feed dog W2 en- 'gages against'the'outerend of the blank which is retained inan elevated position beneath and Onthe forwise -along the magnets and along the :gauge block' 'I9. Thisadvancement of 'the blank covers only ashort distance which issufficient to bring the forward end of the blank into a first opera tionscoring station S and into the grip of apair ofrotating rollers whichincludes an upper "first operation scoring roller I2I and a lower anvilroller I22 (Figs. 3 and 6).

The scoring roller I2! andthe anvil roller I22 -a-re formed withtrunnions I23, I24 which are journaled in respectivebearing'blocks I25,I26.

The bearing blocks are adjustably disposed in a manner to be hereinafterexplained, adjacent a housing I21 which is bolted to the machine frameIT. "The inner trunnion ofeach-roller is formed "with a tongue I3I whichengages in a notch I32 in-the inner end of respective drive shafts I33,

I34. These drive shafts extend through'sleeves I35 which are secured inbores I36 in the housingIZ'I and the outer ends of the shafts arejournaled in bearings I3! formed in the housings.

v The scoring roller I2I and the anvil roller I22 are rotated in unisonby respectivemeshing gears I38, I39 which are mounted on the outer-endsof the drive shafts I33, I34. These gears are rotated in time with theother moving-parts of the machine by an intermediate gear I4I (Figsl, 4'and5) which meshes with the anvil roller gear I39 and which is carriedon a shortshaft secured in a 'boss I42 formed in the bracket 84. The

bracket '84 is bolted to the housing I21.

7 The intermediate gear I4I meshes with and is driven by a main drivinggear I44 which is mounted on the continuously rotating shaft 89 inthebracket 84. electric motor 61 and hence the gear train just explainedand the scoring roller I2! and the anvil roller'l22 are likewise rotatedin time with the other moving parts of the machine. In this manner thescoring roller I2I is rotated in synchronism with the passage of a,blank A through the machine and principally with the entrance of theblank into the grip of the rollers I2I, I22.

When theforward end of the blank A is gripped between the scoring rollerI2I and the anvil roller I22 it is drawn in by the rollers and advancedendwise through the machine. During this passage between the rollers theblank is scored or impressed with the score lines B, C. For this purposethe scoringroller I2! is made with a circumference equal to the lengthof the blank A plus the space between two adjacent blanks.

I48 located in a recess I49 in the scoring-roller,

The insert block I48 is held in place by a tapered key IEI which isdisposed in the recess I49 adjacent the block and which is secured by ascrew I52 against displacement. The key is sunk below the surface of theroller to provide a clearance space I53 between the terminal ends ofthecutting edges. These raised cutting edges 1I46,.I li cooperate with aflat outer face I56.

(Fig.:6) of the anvil roller I22 in impressing the v score linesin theblank.

When a blank A first enters between the-scoringr roller I2 I 1 andtheanvil roller 122,; the..clear Shaft 89 is 'driven'from the .ter.

ance space't53 in 'the .scoring roller is iniaiposition adjacent theanvil roller so thatz.the forward edge of the blankwill enter'into the.clearance space. The scoring roller rotates in 1a counter-clockwisedirection as viewed in Fig. 39 and thus scoring of the blank will'notbegin until the cutting edges I41 of the insert I48 come into engagementwith the blank. However, the blank is in the grip of the rollers andbegins to advance through: the rollers as theyrotate; This is broughtabout by a rubber" feed ring I51, (Fig. 8) which is carried on thescoring. rolleraand which presses the blank down against the-anvilroller and thus advances it between the rollers.

The engagement between the insert cutting edges I47 and the blank takesplace a. predetermined distance inwardly of the front edge of the blank,as shown in Fig. 12, and this distance is determined by the relativetiming between the cross feed bar- II)! and the scoring roller. When theinsert cutting edges come into this-engagement with the blank thescoring operation-begins at the junction lines C and continues by way ofthe cutting edges I46 to the rear end of the blank as the rollersrevolve and thus feed the blank forward. This constitutes afirst-scoring operation in which the heavy scoring ofthe blank iseffected to a predetermined approximate depth of score cut.

Following this first scoring operation, the blank is further advanced bya pair of feed rollers IBI, I62 (Figs. 1 and 6) between whichthe blankpasses. These rollers are mounted on respective shafts I63, H54journaled in bearings formed in a bracket I65 which is bolted to a sideof the scoring roller h'ousing I21. The upper feed roller IIiI rotatesby frictional engagement with the lower roller I62 when the blank is notinterposed therebetween. The lower roller is positively driven in timewith the other moving parts of the machine by a spur gear .I'S'I (Figs.1 and 4) which is mounted on the outer .end of the shaft I64. This gearmeshes with'l-and is driven through an idler gear I 68 which. alsomeshes with the scoring roller gear I139. "The idler gear is mounted ona short shaft carriedin the bracket I65.

'Theifeed rollers I68. I62 advancetheblanks along a longitudinal tableIII which'is secured to a table bracket I72 bolted to aside .of thescoring roller housing I27. Duringtheir passage along the tabletheblanks are held 'in line by an inner side guide I73 and an outer. sideguide I'M between.whichtheblanks pass. Theguides aresecured to the tableI'II.

The feed rollers ISI, .152 transfer the-blank A from the first operationscoring station S intosa second operation scoring station T. Attheklatstation, the score is made deeper and-wider to precisedimensions. This second scoringaoperation is effected by anauxiliaryscoringroller I T! (Fig. 3) andan auxiliary anvil roller I18which are supported in respective bearing-blocks I8 I I82 disposed:adjacent a housing I83 bolted to the machine frame Il. Thebearinggblocks; are identical with the bearing blocks. I25, I26zwhichare located at the first operation scoring station S.

The auxiliary scoring roller I'll'is rotated: in the same manner as thescoring. roller- I.2I,.-in this case by a; gear I85 .(Fig. 4) whichismounted on the outer end of a rollershatt whichmay vbejournaled inthehousing I 83. Thei auxiliary anvil .roller 51573 is. similarlyrotatedabyi azgear. I 86 which meshes with the gear I85; and which ismounted on the outer end of a shaft journaled in the housing I83. Theauxiliary anvil gear I86 meshes with an idler gear I81 mounted on ashort shaft carried in the feed roller bracket I65. The idler gear I81meshes with and is driven by the feed roller gear I61.

Hence through this gear train the auxiliary scoring roller I11 and theauxiliary anvil roller v I18 are rotated in unison and also in time withthe first operation scoring roller I2I and the feed rollers I6I, I62.This brings the blank into the grip of the second operationscoringroller I11 in the same relative position to the roller as it occupiedwhen it first entered the grip of the first operation scoring rollerI2I.

For best results it has been found practical to eliminate the re-scoringor second operation scoring of the connecting score lines C in theblank. For this purpose the second operation or auxiliary scoring rollerI11 is formed with a clearance recess I9I (see Fig. 10) in its peripheryin the place which corresponds to the insert scoring operation takesplace until the straight score lines B move adjacent the rollers. Theselines B are re-scored as the blanks advance between the rollers by apair of spaced and parallel scoring or cutting edges I92 (Fig. 10) whichare formed on the auxiliary scoring roller I11. These cutting edgesextend around the scoring roller and terminate adjacent the clearancerecess I9I.

Following the second scoring operation the scored blank A is furtheradvanced along the table I1I by a pair of cooperating auxiliary feedrollers I95, I96 (Figs. 1 and 3). These rollers are or may be identicalwith the feed rollers I8 I, I62 and are mounted on shafts I91, I98journaled in a bracket I99 bolted to the auxiliary scoring rollerhousingI83. Adjacent these rollers, the table IN is supported on a bracket 298which is bolted to a side of the housing I831 The lower roller I96 isthe driving roller and this is rotated by a gear 2IlI (Fig. 4) which iscarried on the outer end of the roller shaft I98. Gear 28I meshes withand is driven through an idler gear 202 which meshes with the auxiliaryanvil roller gear I86. The auxiliary feed rollers I95, I96 advance thescored blank A-into position between a pair of flattening rollers 285,296 (Fig. 3) which press down any portions of the blank adjacent thescore lines which have been raised during the scoring operations. Theseflattening rollers are mounted on respective shafts 201, 288 which arejournaled in bearing blocks 289, 2III adjustably disposed in a bracket2II bolted to the machine frame I1. The outer ends of the shafts 201,208 carry meshing drive gears 2I5, 2I6 (Fig. 4). The lower gear 2I6meshes with and is driven by a gear 2I1 (Fig. 1) which is mounted on ashort shaft 2I8 journaled in a bearing 2I9 formed in the feed rollerbracket I99. The outer end of the shaft carries a gear 22I which mesheswith and is driven by the feed roller gear 20 I.

As a scored blank A leaves the flattening rollers 265, 206 it engagesagainst a deflector bar 225 which is bolted to a magazine rack 226secured to the'machine frame I1. The deflector bar guides the blank intothe magazine where it falls into position on the top of a stack of suchblanks previously discharged from the rollers. This completes the travelof a blank through the machine. The blanks are removed by hand from thismagazine as needed for subsequent operations.

A more detailed explanation of the scoring roller and anvil rollermountings will now be given. These mountings are the same for both 233located in the bottom of the slideway. The

bearing block and the wedge are retained in place within the slideway bya flat plate 234 which is secured to the outside of the housing I21.

The bearing block and the Wedge are held tightly together and againstthe bottom of the slideway by a compression spring 235 which surroundsthe shank of a stud 236 which extends up through the bottom of theslideway and through the wedge and is threaded intothe bearing block.The spring is interposed between the housing I21 and an enlarged head onthe stud.

Adjustment of the anvil bearing block I26 and the anvil roller I22carried therein is efiected by shifting the wedge 233 horizontally alongthe bottom of the slideway. This is brought about by a screw sleeve 238'(Fig. 11) which is threaded into the housing I21 adjacent the slideway23I. The inner end of the sleeve abuts against the large end of thewedge 233. The outer end of the sleeve is formed with actuating gearteeth 239 which mesh with a micrometer gear 24l disposed in a casing 242bolted to the housing I21. The casing also encloses the screw sleeve 238and its gear 239.

At its ends, the micrometer gear or screw 24I is formed withtrunnions243. The inner trunnion is carried in the casing 242 while theouter trunnion is supported in a removable plate 244 which is secured tothe casing. The outer trunnion also carries'a graduated collar 245 and anut 246 to which a wrench may be applied for turning the micrometergear.

Hence when the micrometer gear 24I is turned, it rotates the screwsleeve 238 by way of its gear teeth 239 and thus shifts the wedge 233horizontally. Such a movement of the wedge shifts the anvil bearingblock vertically into the desired position. After such an adjustment thewedge is locked in place against the inner end of the screw sleeve by along locking stud 241. This stud extends through the plate 244, thecasing 242, the screw sleeve 238 and is threaded into the large end ofthe wedge. Locking of the Wedge is efiected by tightening of the studand conversely when an adjustment is to be made the stud must first beloosened. The stud is also utilized to draw the wedge outwardly when itis desired to lower the anvil bearing block I26.

The mounting for the scoring roller bearing block I25 will now beconsidered. This block is mounted so that it may be accurately adjustedin three directions so that the scoring rollers I2I, I11 may be properlyaligned relative to each other and tothe blank being scored. For thispurpose the top of the-bearingblockl25 is formed with a fiat surface 25*(Figs. 3 and 6) which seats against afiatbottom surface 256 of a swivelplate 251. The. top of this swivel plate is formed witha.convex-.surface 258which extends transversely of the plate and whichseats against a concave surface 259- of aseatplate 26L The top oftheseatplate is fiat and seats against. an overhanginghead section 262 ofthehousing'I 21.

The bearingblock I25, the swivel plate 251 and the seat plate 26L areheld together and are clamped against the head section 262 .of thehousing:I21 by a pair of long bolts 265(Fig. 3') which extend .downthrough these parts and. have their lower ends threaded into the bearingblock. After an adjustment of the bearing block the bolts are screwed uptight to clampand lock the parts in. their adjusted position. Thebearing block and its associated swivel plate and seat plate areretained against endwise displacement by side clamps 269 which arebolted to the swivel .plate and to the housing,

The' first of the adjustments possible with such a construction ofbearing mounting is for rotating'the bearing block-I25 horizontally s0that'the first and the second operation scoring rollers I2I, I1I.- maybe brought-into parallelism; To-bring this: about the'bearingblock isrotatable about a pivot button" 261 (Fig. 6) which is disposedwithin-.abushing 268 transversely divided at the junctureofsurfaces255,256. Thelower bushing section is seated in a recess 259 formediinbearing block I25the upper section in a hole.

21!- in-the-swivel plate 251. The button is located horizontally at theengaging surfaces 255. 1'

2550f the bearing block" and the swivel plate and islocat'ed verticallyin alignment with the cutting edges I48 of the scoring roller.

The button 261 is formedon the lower end of airod 213 which extends upthrough'the hole 21! in the swivel plate and up'through aligningclearance holes 214; 215, respectively formed in the seat plate ZBI andthe housing head section 262; The upper end'of the'rod is formed withahead 215 which rests on top of the housing head thumb screw and alsoprovides for lifting the button up out of its pivotal position sothebearing block may be removed when desired.

Turning of the bearing block I25 on its pivot bu t n-261 is broughtabout by adjustment of a pair'of long screws 283 (Figs. 6 and '7)' whichare threaded into the bearing block. Theinner ends of the screws engageagainst depending pins 284 which are secured'in the bottom of the swivelplate 251 and which extend down into clearance openings 285 formed inthe bearing block.

Thus by loosening one of thescrews 283 and tightening up on the other aforce is exerted against the proper pin 284 to rotate the bearing block.relative to the stationary swivel plate 251.

After such an adjustment the screws 283 are 1 locked in adjustedposition by locknuts 286 which are carried on the screws.

It is sometimes desirable to out one score line B in the blank to agreater or lessser depth than the other and this brings into play thesecond the .seat plate has a clamp block 288'secured to it by bolts 289.

The clamp block 288 carries a seat plate micrometer adjusting sleeve 29Iwhich is threaded intotheblock. The innerend of the sleeve rests againsta swivel washer 292. Abolt 2,83which 'extends. through the sleeve and.through the washerv and is threaded into. the housinghead section.262,adjustably. secures the clamp block to the housingIZ'l. Thisbolt retainsthe entire unit of fbearing, bloclgswivel plate,and seat plate in placerelative to the housing I21.

In a similar manner the clamp. block 288 is adjustably secured to theswivel plate 251. ..This is brought about by a swivel plate micrometeradjusting sleeve 295 which is. threaded intothe clamp block. The innerend of the sleeve rests againsta' swivel washer 296. A bolt 291'extendsthrough the sleeve and through the washer and is threaded into theswivel plate and this bolt secures the platev to the clamp block.

Thus by loosening the bolt 291 and rotating the sleeve'295 by means ofspanner wrenchholes provided in the sleeve, the swivel plate 251'may beshifted through an arc inwardly or outwardly in its concave seat in'theseat plate 26l andthis shifting of the swivel plate tilts the bearingblock I25 and the'scoringroller I2I carried therein to the angledesired. After such an adjustment the swivelplate is locked'in its newposition by, tightening the bolt-291. I f.

The third adjustment of'the scoring roller I2I has to do with shiftingthe roller inwardly or outwardly relative to the longitudinal edge ofthe blank being scored, to bring'the first and second operation scoringrollers into longitudinal alignment relativetotheedge of the blank. Suchan adjustmentis efiectedby loosening the. bolt 293 in the adjustingsleeve 29! and rotating the sleeve in the proper direction.

This shifts the seat plate 26L and the swivel plate 251 and bearingblock. I25 carried thereon as a unit outwardly or inwardly'as thecasemay be and thus brings the scoring roller into the desired position.After such an adjustmentthe seat platev is locked in its newposition by.tightening'of the bolt 293.

Thus with-such a scoring roller mounting construction, the scoringroller may in fact be universally adjusted in almost anydesireddirection with micrometer accuracy. The adjusting sleeves andscrewsprovide this micrometer accuracyand the location-of the adjustingelementsfurther results in a mountingconstruction which permits ofremoving the scoring roller bearing blockand its return to itsmountingwithout in any way interfering with the adjustment oftheblock-or the scoring roller carried therein. It is thought that: theinvention and many of its attendant advantages will b understood fromthe foregoing description, and itwill be apparent that various changesmay be'madein the form, construction and arrangement of the partswithout departing from the spirit'and cope of the -inventionorsacrificing-all of its ma erial advantages'the form hereinbeforedescribed being merely a preferred embodiment thereof.

I claim: 2

1. In a scoring machine, the combination of devices for feeding a blankof sheet material ing around said roller and terminating adjacent arecess for producing parallel score lines part way across said blank toleave an unscoredportiozitherein, an'insert carried in said rollerbetween the ends of said scoring edges, said insert having an auxiliaryscore edge forming a continuation of and a connection between theparallel score edges of said roller? at one end of the score lines, asecond operation scoring roller and a second anvil roller between whichthe blank passes to receivev a re-score cut of a portion of the scorelines in the blank, said second operati'on scoring roller having a pairof spaced and parallel scoring edges and a recess in its periphery, andmeans for rotating said second rollers in timewiththe advancement of theblank along its .path of travel to cut deeperthe score lines previouslycut bythe first operation roller parallel scoring edges and to leaveunaltered the score lines previously cut by the auxiliary score ascoring operation-thereupon, one of said rollers having a pair of spacedand parallel annular scoring edges extending therearound for cutting apair of parallel score lines in the blank, means for rotatingsaidrollers, and devices for shifting one of said rollers for cuttingoneof said score lines in the blank deeper than the other. a

3. In a scoring machine, the combination of an anvil roller, ascoringroller adjacent said anvil roller for performing a scoring operationupon a blank passed between said rollers, a housing adjacent saidrollers, a bearing block in said housing for supporting said scoringroller, a. universal joint connection between said housin and saidbearing block so that the block may be angularly and lineally adjustedto bring-the scoring the blank, and means for rotating the scoringroller ineach adjusted position. a

4. Ina scoring machine, the combination of an anvil roller, a scoringroller adjacent said anvil roller for performing a scoringoperation upona blank as, it passes between said rollers, a housing adiacentysaidrollers, a bearing block in said housingjfor supporting said .scoringroller, a swivel plate having a convex surface mounted adjacentsaidbearing block, a seat plate having a'concave surface to receivesaidswivel plate, block adjusting devices for rotatingthe block and thescoring roller, carried therein in a direction parallel 'withtheplaneoithe blank when between the rollers. swivel plateadjusting devicesroller'for performing a scoring operation upon a blank when positionedbetween said rollers,a housing adjacent said rollers, a bearing block insaid housing for supporting said scoring roller, a

, universal joint connection for said bearing block and parallel scoringedges formed upon and exrolle'r into a predetermined position relativeto for rotating'the block in a direction at an angle to the plane ofthe'blank, seat plateadjusting devices for lineally shifting the blockacross the blank, clamping devicesfor securing the block in an adjustedposition in said ho using,'and means for rotating the scoring roller inall adjusted positions of the block.

5. In ascoringmachine, the combination of an' anvil roller, a scoringroller adjacent said anvil tending partially around the periphery ofeach of said rollers, the scoring edges on one of said rollers beinglonger than those on the other, means for feeding blanks past saidrollers and into engagement with said scoring edges, means for rotatingsaid rollers in timed relation to said feeding means whereby each pairof scoring edges operates in succession upon each blank to produce asingle pair of parallel score lines thereon, and means for angularlyadjusting the axis of one of saidv rollers relative to the blank beingscored to vary the depth of cut of each cutting edge of the roller,whereby the score lines produced by said rollers may be of different andvarying predetermined strength.

'7. In a scoring machine, the combination of a pair of cooperatingrollers, one of said rollers having a pair of spaced parallel scoringedges extending around its periphery and terminating adjacent a recessin: the roller for producing parallel score lines'partially across ablank passed between said rollers to leave an unscored portion in theblank, an insert disposed in said roller recess and having an auxiliaryscoring edge forming a continuation and a closed end of said parallelscoring edges, said parallel scoring edges and said auxiliary scoringedge together producing a score out terminating within the confines ofsaid blank to set oil a tearing strip shorter than the length of theblank, and means for rotating said rollers to produce said score out.

8. In a scoring machine, the combination of devices for feeding a blankof sheet material alOng a predetermined path of travel, a firstoperation scoring roller disposed adjacent the path of travel of theblank and engaging against the blank for producing spaced parallel scorecuts of predetermined depth extending partially across said blank and aterminating score cut section on said roller for joining together saidspaced parallel score cuts within the confines of the blank, means forrotating said roller, a second operation scoring roller also disposedadjacent the path of travel of the blank and engaging the blank forre-scoring and increasing the depth of said spaced and parallel scorecuts to leave the said terminating scored section of shallower depth andstronger thanthe re-scored portion of the score lines, and means forrotating said second operation scoring roller in time with the feedingof the blank to bring the re-scoring out in the desired predeterminedlocality in the blank.

- JOHN M. HOTI-IERSALL.

